There is currently a problem with the backlight on notebooks using an Intel graphic card and the new kernel 2.6.37.
It can happen that the display switches to the lowest possible setting and can't be restored to a brighter setting again (by using Fn function keys). More information in this bug report:
https://bugzilla.kernel.org/show_bug.cgi?id=22672

Best Regards,
Sordon

PS: On my notebook (Dell D620) this bug is unfortunately there and I'm waiting for a fix.

There is currently a problem with the backlight on notebooks using an Intel graphic card and the new kernel 2.6.37.
It can happen that the display switches to the lowest possible setting and can't be restored to a brighter setting again (by using Fn function keys). More information in this bug report:
https://bugzilla.kernel.org/show_bug.cgi?id=22672
.

The bug is also present on my Samsung N220... using .36 for the time being.

2.6.37-0.shl.4 arrived in the repositories today (13 Jan). I guess it's the fourth 2.6.37 kernel although it's the third one I've noticed.
Are you referring to this kernel, or are you having problems with all 2.6.37 kernels.

_________________There are some who call me Tim

Sordon

Post subject:Posted: 13.01.2011, 18:11

Joined: 2010-09-13
Posts: 55

Status: Offline

Looking at the changelog it seems to be that with kernel 2.6.37-0.slh.5 the problem is fixed. Thanks slh

slh

Post subject:Posted: 13.01.2011, 20:46

Joined: 2010-08-25
Posts: 779

Status: Offline

2.6.37-0.slh.5-aptosid-{686,amd64} might indeed help with this issue. Unfortunately my i830, i945GME and i945GZ chipsets are not affected by this, which makes debugging almost impossible.